Tracking fixing reported vulnerability in remarkable@1.7.1

[dmitriz]

This is to track progress made fixing this issue in the remarkable package
that is a dependency of markdown-toc and markdown-magic
used in global scripts to manage automated table of contents
generation and insertion in this module.

References to relevant Snyk reports:

https://app.snyk.io/test/npm/remarkable
https://app.snyk.io/vuln/SNYK-JS-REMARKABLE-174641
https://app.snyk.io/test/npm/markdown-toc
https://app.snyk.io/test/npm/markdown-magic

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